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12875998 = 223279913
BaseRepresentation
bin110001000111…
…100011011110
3220020011112211
4301013203132
511244012443
61135551034
7214305232
oct61074336
926204484
1012875998
1172a4a23
12438b47a
13288a945
1419d25c2
1511e519d
hexc478de

12875998 has 8 divisors (see below), whose sum is σ = 20153808. Its totient is φ = 6158064.

The previous prime is 12875981. The next prime is 12876001. The reversal of 12875998 is 89957821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139911 + ... + 140002.

It is an arithmetic number, because the mean of its divisors is an integer number (2519226).

Almost surely, 212875998 is an apocalyptic number.

12875998 is a deficient number, since it is larger than the sum of its proper divisors (7277810).

12875998 is a wasteful number, since it uses less digits than its factorization.

12875998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279938.

The product of its digits is 362880, while the sum is 49.

The square root of 12875998 is about 3588.3140888166. The cubic root of 12875998 is about 234.3834631137.

The spelling of 12875998 in words is "twelve million, eight hundred seventy-five thousand, nine hundred ninety-eight".

Divisors: 1 2 23 46 279913 559826 6437999 12875998